00702cam a2200193 7i4500 0000021929 20020617090000.0 0070609829 (acid-free paper) TD 755 R326 1995 Reed Natural systems for waste management and treatment Sherwood C. Reed, Ronald W. Crites & E. Joe Middlebrooks. 2nd ed.. New York: McGraw-Hill, 1998. Includes bibliographical references and index. Sewage -- Purification -- Biological treatment. Sewage sludge -- Management. Middlebrooks, E. Joe Crites, Ronald W. 1100007425 Book Open Shelf KOLEKSI TERBUKA